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Note 4 - Property and Equipment
9 Months Ended
Sep. 30, 2012
Property, Plant and Equipment Disclosure [Text Block]
4.  Property and Equipment

Property and equipment are summarized as follows (in thousands):

   
September 30,
2012
   
December 31,
2011
 
Construction equipment
  $ 133,302     $ 125,222  
Transportation equipment
    16,519       17,963  
Buildings
    7,186       4,729  
Office equipment
    1,365       1,077  
Construction in progress
    1,933       2,544  
Land
    4,886       3,026  
Water rights
    200       200  
      165,391       154,761  
Less accumulated depreciation
    (63,065 )     (71,332 )
    $ 102,326     $ 83,429  

Construction in progress at September 30, 2012 consisted primarily of expenditures for a new office in Dallas, Texas.  In addition to the expenditures for the new office in Dallas, construction in progress at December 31, 2011 consisted primarily of expenditures for a new office in San Antonio, Texas, which was completed during the three months ended March 31, 2012.